package com.itheima.reggie.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.itheima.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

  // 设置静态资源映射
  @Override
  protected void addResourceHandlers(ResourceHandlerRegistry registry) {
    log.info("开始静态资源映射");
    registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
    registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    registry.addResourceHandler("/img/**").addResourceLocations("classpath:/img/");
    // super.addResourceHandlers(registry);
  }

  // 扩展mvc框架消息转换器
  @Override
  protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
    // 创建消息转换器对象
    MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
    // 设置对象转换器，底层使用JACKSON将JAVA转为JSON
    messageConverter.setObjectMapper(new JacksonObjectMapper());
    // 将消息转换器对象追加刀MVC框架的转换器集合
    converters.add(0, messageConverter);

    // super.extendMessageConverters(converters);
  }
}
